[FIX] l10n_ar_afipws_fe: change the date time for the AFIP webservice (#360)
[FIX] l10n_ar_afipws_fe: change the date time for the AFIP webservice (#360)

"fecha_pago" only need to be reported in document code 19 (facturas de exportación).
adhoc-dev/odoo-argentina,adhoc-dev/odoo-argentina,ingadhoc/odoo-argentina